Self-propelled crushing machine

ABSTRACT

In a self-propelled crushing machine mounting an operator&#39;s platform (13), a hopper, (11) a crusher (8) coupled with the hopper and a driving power source (10) on a vehicular chassis (1) having a traveling device (19), the crusher (8) is provided at a longitudinally intermediate position of the vehicular chassis (1), the hopper (11) is located at the front side of the crusher, the driving power source (10) is located at the rear side of the crusher, the operator&#39;s platform (13) is located at one lateral side of the crusher, and a motor (24) for crusher is located at the other lateral side of the crusher. By this, the positions of the hopper (11), the engine (10) and the motor (24) can be low so that the overall height of the crushing machine can be low so as not to cause a problem in transportation by loading on the rear chassis of the truck. Also, since the hopper (11) is positioned at the frontwardly shifted position so that the operator&#39;s platform (13) will not serve as obstacles to improve efficiency in charging the object of crush into the hopper.

FIELD OF THE INVENTION

The present invention relates to a self-propelled crushing machine forcrushing an object such as concrete waste and the like at a site oftaking down a building.

BACKGROUND ART

As a conventional self-propelled crushing machine, there has been knownthe machine, in which an operator's cabin, a hopper, a crusher and adriving power source and so forth are mounted on a vehicular chassisprovided with a pair of left and right traveling bodies, and a dischargeconveyer is provided beneath the vehicular chassis in raisable fashion,as disclosed in Japanese Unexamined Utility Model Publication No.64-32744 and Japanese Unexamined Patent Publication No. 63-77553.

These self-propelled crushing machines can travel by themselves and canfinely crush the objects of crush, such as concrete wastes charged inthe hopper, and discharge the crushed pieces out of the vehicularchassis through the discharge conveyer.

The self-propelled crushing machine disclosed in the first-mentionedpublication has the operator's cabin at the front side of the vehicularchassis, the crusher at the longitudinal intermediate portion of thevehicular chassis and the driving power source at the rear position ofthe vehicular chassis. A charging inlet of the hopper connected to thecrusher is positioned above the operator's cabin so that the hopperprojects above the operator's cabin to make the overall height of thecrushing machine tall. This results in a permissible height limit beingexceeded when the crushing machine is transported by loading it on therear chassis or carrier of a truck, to thereby cause a difficulty intransportation. Also, since the charging inlet of the hopper is locatedabove the operator's cabin, the operator's cabin may obstruct chargingof the object of crush by a loading machine, such as a power shovel andso forth from the front side of the vehicle to cause degradation ofefficiency of the charging operation.

Also, in the self-propelled crushing machine disclosed in thelater-mentioned publication, a part of the discharge conveyer extendsoutside of the vehicular chassis from the side of the driving powersource. This requires a vertical clearance between the driving powersource and the discharge conveyer. To pass the object of crush, it isnecessary to make the height of the driving power source high in orderto permit the required clearance. In addition a motor for the crusher ismounted above the driving power source. Therefore, the overall height ofthe crushing machine is such as to cause a similar problem with regardto its transportation as described above. Furthermore, since the gravitycenter of the vehicular chassis is placed at relatively high position,the stability of the vehicular chassis is degraded.

Therefore, it is an object of the present invention to provide aself-propelled crushing machine which is low in overall height so as notto exceed the permissible height limit when it is loaded on the rearchassis of a truck and, thus, not to cause a problem in itstransportion, and an operator's cabin will not obstruct charging as ahopper is located and the front side of the operator's cabin and, thus,improves efficiency in the charging operation to the hopper by a loadingmachine of an object of crush.

DISCLOSURE OF THE INVENTION

In order to accomplish the above-mentioned and other objects, accordingto one aspect of the invention, a self-propelled crushing machineincludes an operator's platform, a hopper, a crusher coupled with saidhopper and a driving power source on a vehicular chassis having atraveling device. The crusher is provided at a longitudinallyintermediate position of said vehicular chassis. The hopper is locatedat the front side of said crusher, and said driving power source islocated at the rear end of said crusher. The operator's platform islocated at one lateral side of said crusher. A motor for the crusher islocated at the other.

With the construction set forth above, the positions of the hopper, theengine and the motor can be low so that the overall height of thecrushing machine can be low so as not to cause a problem intransportation when it is loaded on the rear chassis of the truck. Also,since the hopper is positioned at the frontwardly shifted position sothat the operator's platform will not be an obstacle to improveefficiency in charging the object of crush into the hopper.

In the construction set forth above, the traveling device may comprise apair of left and right driving mechanisms, a discharge conveyer isarranged between said pair of left and right driving mechanisms, a partof said discharge conveyer is extended outward of said vehicular chassisand said traveling device at the opposite side of said driving powersource.

Also, in the construction set forth above, since the part of thedischarge conveyer is projected outward of the vehicular chassis andtraveling device at a side opposite to the engine, it becomesunnecessary to provide a vertical clearance to pass the object of crushbetween the engine and the discharge conveyer so the height of theengine will not becomes too high.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be understood more fully from the detaileddescription given herebelow and from the accompanying drawings of thepreferred embodiment of the invention, which, however, should not betaken to be limitative to the invention, but are for explanation andunderstanding only.

In the drawings:

FIG. 1 is a side elevation of one embodiment of a self-propelledcrushing machine according to the present invention;

FIG. 2 is a front elevation of the above-mentioned embodiment;

FIG. 3 is a plan view of the above-mentioned embodiment;

FIG. 4 is a side elevation showing the detail of a discharge conveyerportion of the above-mentioned embodiment; and

FIG. 5 is a section showing the detail of a hopper portion of theabove-identified embodiment.

BEST MODE FOR IMPLEMENTING THE INVENTION

The preferred embodiment of a self-propelled crushing machine accordingto the present invention will be discussed with reference to FIGS. 1 to5.

As shown in FIG. 1 and 2, a pair of left and right truck frames 3, 3 ismounted on the lower left and right sides of a vehicular chassis 1 viacross members 2. On the truck frame 3, a hydraulic motor 17 and asprocket 4 and an idler 5 driven by the hydraulic motor 17 are mounted.A crawler 6 is wound over the sprocket 4 and the idler 5 to form acrawler type drive mechanism 7. A pair of left and right drivemechanisms 7, 7 form a traveling device 19.

On the vehicular chassis 1, a hopper 11 is driven by a hydraulic motor,a crusher 8 which is connected to the hopper and driven by a hydraulicmotor, an engine 10 for driving a hydraulic pump 18 which supplies apressurized fluid to respective hydraulic motors and a valve group 9 forswitching supply of the pressurized fluid from the hydraulic pump 18 torespective hydraulic motors are mounted. The crusher 8 is positioned ata longitudinally intermediate position on vehicular chassis 1. Thehopper 11 is located at the front side of the crusher 8. The engine 10is located at the rear side of the crusher 8. The valve group 9 ispositioned at the intermediate position between the crusher 8 and theengine 10.

At a portion projecting sidewardly from one side surface 8a of thecrusher 8 in the vehicular chassis 1, (see FIG. 3) is provided with ahand rail 12 to serve as an edge of operator's platform 13. A pair ofleft and right traveling levers 14, 14 are provided in the operator'splatform 13. On the other hand, on a cover 40 located at the same sideof crusher 8 and on the operator's platform 13, operation levers 15 forcontrolling the hopper 11 and the crusher 8 by operating the valve group9 are provided.

Between a pair of the driving devices 7, 7, a discharge conveyer 16 isprovided for vertical rocking motion. The inlet side 16a of thedischarge conveyer 16 is located just beneath the discharge outlet ofthe crusher 8 (see FIG. 4) On the other hand, the outlet side 16b of thedischarge conveyer projects frontwardly from the driving mechanisms 7, 7and the vehicular chassis 1.

Next, the detail of respective parts will be discussed.

As shown in FIG. 5, the hopper 11 is mounted on a base 50 of thevehicular chassis 1. A bottom plate 51 of the hopper 11 is adapted toreciprocate toward and away from the charging inlet 8b of the crusher 8.On the other hand, one end of a connecting link 53 is connected to thebottom plate 51 via a pin 52. The other end of the connecting link 53 isconnected to a circular plate 54 via a pin 55. The circular plate 54 isdriven to rotate by means of a hydraulic motor 56.

When the circular plate 54 is driven to rotate, the bottom plate 51 isdriven to reciprocate to feed the object of crush charged into thehopper 11 into the charging inlet 8b of the crusher 8.

As shown in FIG. 3, the rotary shaft 20 of the crusher 8 is providedwith a flywheel 41 at one end extending from the one side 8a. The otherend of the rotary shaft is adapted to be driven by a hydraulic motor 24via a pulley 21, a belt 22 and a pulley 23. The hydraulic motor 24 ispositioned at the side or obliquely sideward position of the crusher 8and at the opposite side to the operator's platform 13. The flywheel 41is surrounded by the cover 40 at the one side. The pulley 21, the belt22 and the pulley 23 are covered by a cover 42 at the other side.

As shown in FIGS. 2 and 4, the discharge conveyer 16 is provided with adrive pulley 26 and a driven pulley 27 on a frame 25 thereof. A belt 28is wound around the drive pulley 26 and the driven pulley 27. The drivepulley 26 is adapted to be driven by a hydraulic motor 29. On the frame25, a V-shaped belt guide 30 is provided so that the belt 28 may runthrough a V-shaped path. A supporting strip 31 fixed to the frame 25 ispivoted on a bracket 32 which is mounted on the vehicular chassis 1 forvertical pivotal movement about a pin 33. A receptacle piece 34 attachedto the frame 25 is connected to the vehicular chassis 1 via a connectingmember 35, such as a turn buckle, a rod, a wire or so forth. Byadjusting the length of the adjusting member 35, the discharge conveyer16 may rise and fall between an upwardly tilted position and ahorizontal position.

Since the preferred embodiment is constructed as set forth above, therespective position of the hopper 11, the position of the engine 10 andthe position of the hydraulic motor 24 can be low so that the overallheight of the crushing machine can be low. Therefore, no problem will beencountered in transportation by loading the machine on the rear chassisof the truck. Also, since the hopper 11 is positioned at the frontwardlyshifted position the operator's platform 13 and the traveling levers 14will not serve as obstacles to improve efficiency in charging the objectof crush into the hopper 11. Furthermore, since the part of thedischarge conveyer 16 is projected outward of the vehicular chassis 1and the traveling device 19 at the side opposite to the engine 10, itbecomes unnecessary to provide a vertical clearance to pass the objectof crush between the engine 10 and the discharge conveyer 16 so that theheight of the engine 10 will not become too high.

Although the invention has been illustrated and described with respectto an exemplary embodiment thereof, it should be understood by thoseskilled in the art that the foregoing and various other changes,omissions and additions may be made therein and thereto, withoutdeparting from the spirit and scope of the present invention. Therefore,the present invention should not be understood as limited to thespecific embodiment set out above but to include all possibleembodiments included within the scope of the invention as defined in theappended claims.

INDUSTRIAL APPLICABILITY

As set forth above, the self-propelled crushing machine according to thepresent invention is useful in facilitating its transport to respectiveconstruction sites, and efficiently crushing large objects fromdismantled buildings, such as concrete blocks to be used for recycling.

We claim:
 1. A self-propelled crushing machine comprising:a vehicularchassis having a traveling device; an operator's platform formed on saidvehicular chassis; a hopper; a crusher mounted on said vehicular chassisand coupled with said hopper; and a driving power source mounted on saidvehicular chassis; said crusher is provided at a longitudinallyintermediate position of said vehicular chassis; said hopper is locatedat a front side of said crusher; said driving power source is located ata rear side of said crusher; said operator's platform is located at onelateral side of said crusher; a motor for said crusher is located at theother lateral side of said crusher; and wherein said traveling devicecomprises a pair of left and right driving mechanisms, and a dischargeconveyer is arranged between said pair of left and right drivingmechanisms, a part of said discharge conveyer is extended outward ofsaid vehicular chassis and beneath said hopper so that none of saidcrusher, driving power source and operator's platform intervenestherebetween so as to minimize overall height of the crushing machine.2. A self-propelled crushing machine as set forth in claim 1, whereinsaid discharge conveyer is movable to rise and fall.
 3. A self-propelledcrushing machine comprising:a mobile chassis suspended on a travelingdevice for self-propelled traveling; an operator's platform defined onsaid mobile chassis for operator's operation of the crushing machine; amotor powered crusher mounted on said mobile chassis for operation undercontrol of the operator for object of crush charged thereinto; a hoppermounted on said mobile chassis and coupled with said crusher forcharging the object to be crushed; a driving power source mounted onsaid mobile chassis and being coupled with said hopper and said crusherfor providing the driving power thereto; said hopper, said crusher andsaid driving power unit being arranged substantially in alignment and inthat order along a longitudinal axis of said mobile chassis; saidoperator's platform being arranged at a position laterally shifted fromthe line along which said hopper, said crusher and said driving powerunit are aligned; and wherein said traveling device comprises a pair ofleft and right driving mechanisms provided substantially along left andright sides of said mobile chassis in mutually spaced apart relationshipwith a clearance, and which further comprises a discharge conveyermounted to said mobile chassis below said hopper and within saidclearance for discharging the crushed object discharged from saidcrusher, said hopper and said discharge conveyer being so arrangedrelative to each other that none of the operator's platform, crusher anddriving power unit intervenes therebetween so as to minimize overallheight of the crushing machine.
 4. A self-propelled crushing machine asset forth in claim 3, wherein said discharge conveyer is mounted belowsaid mobile chassis for rocking motion between an active position fordischarging the crushed object discharged from said crusher and aresting position.
 5. A self-propelled crushing machine as set forth inclaim 4, wherein said discharge conveyer is pivotable mounted forrocking motion between said active position and resting position at theintermediate portion on the front end portion of said mobile chassis. 6.A self-propelled crushing machine as set forth in claim 5, wherein thefront end of said discharge conveyer extends frontwardly beyond thefront end of said mobile chassis and said hopper.
 7. A self-propelledcrushing machine as set forth in claim 3, which further comprises amotor coupled with said crusher and powered by said driving power unitfor driving said crusher, said motor being arranged laterally shiftedposition from said line along which said hopper, said crusher and saiddriving power unit are aligned, at the opposite side to the side wheresaid operator's platform is positioned.
 8. A self-propelled crushingmachine as set forth in claim 7, wherein said motor is longitudinallypositioned substantially at the position where said crusher is located.9. A self-propelled crushing machine as set forth in claim 3, whereinsaid operator's platform is longitudinally positioned substantially atthe position where said crusher is located.
 10. A self-propelledcrushing machine comprising:a mobile chassis suspended on a travelingdevice for self-propelled traveling, said traveling device comprises apair of driving mechanisms provided substantially along left and rightsides of said mobile chassis in mutually spaced apart relationship witha clearance; an operator's platform defined on said mobile chassis foroperator's operation of the crushing machine; a motor powered crushermounted on said mobile chassis for operation under control of theoperator for object of crush charged thereinto; a hopper mounted on saidmobile chassis and coupled with said crusher for charging the object tobe crushed; a driving power unit mounted on said mobile chassis andcoupled with said hopper and said crusher for providing the drivingpower thereto; a discharge conveyer mounted to said mobile chassiswithin said clearance for rocking motion between an active position fordischarging the crushed object discharged from said crusher and aresting position; said hopper, said crusher and said driving power unitbeing arranged substantially in alignment and in that order along alongitudinal axis of said mobile chassis; said operator's platform beingarranged at a position laterally shifted from the line along which saidhopper, said crusher and said driving power unit are aligned; andwherein said hopper and said discharge conveyer are so arranged relativeto each other that none of the operator's platform, crusher and drivingpower unit intervenes therebetween so as to minimize overall height ofthe crushing machine.
 11. A self-propelled crushing machine comprising:amobile chassis suspended on a traveling device for self-propelledtraveling, said traveling device comprises a pair of driving mechanismsprovided substantially along left and right sides of said mobile chassisin mutually space apart relationships with a clearance; an operator'splatform defined on said mobile chassis for operator's operation of thecrushing machine; a motor powered crusher mounted on said mobile chassisfor operation under control of the operator for object of crush chargedthereinto; a hopper mounted on said mobile chassis and coupled with saidcrusher for charging the object to be crushed; a driving power unitmounted on said mobile chassis and coupled with said hopper and saidcrusher for providing the driving power thereto; a motor coupled withsaid crusher and powered by said driving power unit for driving saidcrusher; a discharge conveyer arranged below said mobile chassis withinsaid clearance for rocking motion between an active position fordischarging the crushed object discharged from said crusher and aresting position; said hopper, said crusher and said driving power unitbeing arranged substantially in alignment and in that order along alongitudinal axis of said mobile chassis; said motor being arranged at alaterally shifted position from said line along which said hopper, saidcrusher and said driving power unit are aligned, at the opposite side toa side where said operator's platform is positioned; said operator'splatform being arranged at a position laterally shifted from the linealong which said hopper, said crusher and said driving power unit arealigned; and wherein said hopper and said discharge conveyer are soarranged relative to each other that none of the operator's platform,crusher and driving power unit intervenes therebetween so as to minimizeoverall height of the crushing machine.
 12. A self-propelled crushingmachine comprising:a chassis having an elongated platform defined by twoopposite ends at its longitudinal extremes, and two lateral sides; apair of traveling devices attached to said chassis; a hopper having aparticular height and mounted directly to one end of said opposite endsof said platform so as to project above said platform by substantiallyonly said hopper height; a driving power unit mounted on said platformat the other end of said opposite ends; a crusher and an operator'sstation mounted on said platform intermediate said hopper and saiddriving power unit; and a discharge conveyer mounted below said platformand disposed between said traveling devices at said one end of theplatform; said discharge conveyer and said hopper being arrangedrelative to each other without intervention of any of said crusher, saiddriving power unit or said operator's station so as to minimize overallheight of the crushing machine.
 13. The self-propelled crushing machineof claim 12, wherein said discharge conveyer is pivotally mounted tosaid platform for vertical rocking motion between an active position anda resting position.
 14. The self-propelled crushing machine of claim 13,wherein said discharge conveyer has an end protruding forwardly of saidone end of the platform.
 15. The self-propelled crushing machine ofclaim 14, wherein said protruding end of said discharge conveyer is fordischarging objects crushed by said crusher, when said dischargeconveyer is in said active position.
 16. The self-propelled crushingmachine of claim 12, wherein a motor for said crusher and saidoperator's station are at opposite ones of said sides of the platform.17. The self-propelled crushing machine of claim 16, wherein saidhopper, crusher and driving power source are substantially inlongitudinal alignment on said platform.
 18. The self-propelled crushingmachine of claim 12, wherein said hopper, crusher and driving powersource are substantially in longitudinal alignment on said platform.